On 21.09.2020 12:18, Valeriy Vdovin wrote:
> The fix checks that ve->init_task is not referenced during warning
> message decision if ve == ve0, because ve0 init_task is always NULL.
>
> https://jira.sw.ru/browse/PSBM-107673
> Signed-off-by: Valeriy Vdovin <valeriy.vdo...@virtuozzo.com>
Reviewed-by: Kirill Tkhai <ktk...@virtuozzo.com>
> ---
> kernel/cgroup.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/kernel/cgroup.c b/kernel/cgroup.c
> index 691505c..27d7a5e 100644
> --- a/kernel/cgroup.c
> +++ b/kernel/cgroup.c
> @@ -5934,7 +5934,7 @@ void cgroup_release_agent(struct work_struct *work)
> envp, UMH_WAIT_EXEC, NULL, NULL, NULL);
>
> ve_task = ve->init_task;
> - if (err < 0 && (!(ve_task->flags & PF_EXITING)))
> + if (err < 0 && (ve == &ve0 || !(ve_task->flags & PF_EXITING)))
> pr_warn_ratelimited("cgroup release_agent "
> "%s %s failed: %d\n",
> agentbuf, pathbuf, err);
>
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